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SOLVE PROBLEM "TO SWAP THE TWO WORDS" ONLINE Solve problem "To swap the two words" online - Learn Python 3 - Snakify. 1. Input, print and numbers. 2. Integer and float numbers. 3. Conditions: if, then, else. 4. For loop with range. SOLVE PROBLEM "EXPONENTIATION" ONLINE Calculate a n without using loops, ** operator or the built in function math.pow (). Instead, use recursion and the relation a n = a ⋅ a n − 1 . Print the result. Form the function power (a, n) . In all the problems input the data using input () and print the resultusing print () .
SOLVE PROBLEM "UPPERCASE" ONLINE Statement. Write a function capitalize (lower_case_word) that takes the lower case word and returns the word with the first letter capitalized. Eg., print (capitalize ('word')) should print the word Word. Then, given a line of lowercase ASCII words (text separated by a single space), print it with the first letter of each word capitalizedusing
SOLVE PROBLEM "CREATE A FORM ELEMENT" ONLINE Create a Form Element. You can build web forms that actually submit data to a server using nothing more than pure HTML. You can do this by specifying an action on your form element. For example: . Nest your text field in a form element. Add the action="/submit-cat-photo"attribute to
SOLVE PROBLEM "THE FIRST AND LAST OCCURRENCE" ONLINE Print the index location of the first and last appearance of f. If the letter f occurs only once, then output its index. If the letter f does not occur, then do not print anything. Don't use loops in this task. In all the problems input the data using input () and print the result using print () . python javascript java. SOLVE PROBLEM "NEST AN ANCHOR ELEMENT WITHIN A PARAGRAPH Nesting just means putting one element inside of another element. Now nest your existing a element within a new p element (just after the existing h2 element) so that the surrounding paragraph says "View more cat photos", but where only "cat photos" is a link, and the rest of the text is plain text. TEACH PYTHON 3 AND WEB DESIGN WITH 200+ EXERCISES Welcome to our interactive manual of Python 3 programming language. This is an introductory course that is way different from the others. Basic lessons - we start from scratch but go in depth to what you'll really need in production. Challenging problems - handful of brain teasers to practice in any lesson. In-browser code runner - you don't LEARN PYTHON 3 BY SOLVING PROBLEMS ONLINE Learn Python 3 by solving problems online - Snakify. English español Português Русский 日本語 한국어 français Deutsch polski العربيّة Türkçe. LISTS - LEARN PYTHON 3 - SNAKIFY For this exercise, the number of pins and balls will vary. Given the number of pins N and then the number of balls K to be rolled, followed by K pairs of numbers (one for each ball rolled), determine which pins remain standing after all the balls have been rolled. The balls are TWO-DIMENSIONAL LISTS (ARRAYS) Two-dimensional lists (arrays) Theory. Steps. Problems. 1. Nested lists: processing and printing. In real-world Often tasks have to store rectangular data table. Such tables are called matrices or two-dimensional arrays. In Python any table can be represented as a list of lists (a list, where each element is in turna list).
SOLVE PROBLEM "TO SWAP THE TWO WORDS" ONLINE Solve problem "To swap the two words" online - Learn Python 3 - Snakify. 1. Input, print and numbers. 2. Integer and float numbers. 3. Conditions: if, then, else. 4. For loop with range. SOLVE PROBLEM "EXPONENTIATION" ONLINE Calculate a n without using loops, ** operator or the built in function math.pow (). Instead, use recursion and the relation a n = a ⋅ a n − 1 . Print the result. Form the function power (a, n) . In all the problems input the data using input () and print the resultusing print () .
SOLVE PROBLEM "UPPERCASE" ONLINE Statement. Write a function capitalize (lower_case_word) that takes the lower case word and returns the word with the first letter capitalized. Eg., print (capitalize ('word')) should print the word Word. Then, given a line of lowercase ASCII words (text separated by a single space), print it with the first letter of each word capitalizedusing
SOLVE PROBLEM "CREATE A FORM ELEMENT" ONLINE Create a Form Element. You can build web forms that actually submit data to a server using nothing more than pure HTML. You can do this by specifying an action on your form element. For example: . Nest your text field in a form element. Add the action="/submit-cat-photo"attribute to
SOLVE PROBLEM "THE FIRST AND LAST OCCURRENCE" ONLINE Print the index location of the first and last appearance of f. If the letter f occurs only once, then output its index. If the letter f does not occur, then do not print anything. Don't use loops in this task. In all the problems input the data using input () and print the result using print () . python javascript java. SOLVE PROBLEM "NEST AN ANCHOR ELEMENT WITHIN A PARAGRAPH Nesting just means putting one element inside of another element. Now nest your existing a element within a new p element (just after the existing h2 element) so that the surrounding paragraph says "View more cat photos", but where only "cat photos" is a link, and the rest of the text is plain text. FUNCTIONS AND RECURSION We want to provide a few explanations. First, the function code should be placed in the beginning of the program (before the place where we want to use the function factorial(), to be precise).The first line def factorial(n): of this example is a description of our function; the word factorial is an identifier (the name of our function). Right after the identifier, there goes the list of TWO-DIMENSIONAL LISTS (ARRAYS) Two-dimensional lists (arrays) Theory. Steps. Problems. 1. Nested lists: processing and printing. In real-world Often tasks have to store rectangular data table. Such tables are called matrices or two-dimensional arrays. In Python any table can be represented as a list of lists (a list, where each element is in turna list).
INTEGER AND FLOAT NUMBERS Statement. Hour hand turned by α degrees since the midnight. Determine the angle by which minute hand turned since the start of the current hour. Input and output in this problems are floating-point numbers. Play a game about different images of the same graph. CONDITIONS: IF, THEN, ELSE Conditions: if, then, else. 1. Syntax. All the programs in the first lesson were executed sequentially, line after line. No line could be skipped. Let's consider the following problem: for the given integer X determine its absolute value. If X>0 then the program should print the value X, otherwise it should print -X.DICTIONARIES
The first line contains the number N — the number of files contained in the filesystem. The following N lines contain the file names and allowed operations with them, separated by spaces. The next line contains an integer M — the number of operations to the files. In the last M lines specify the operations that are requested for files. SOLVE PROBLEM "DIGITAL CLOCK" ONLINE The program should print two numbers: the number of hours (between 0 and 23) and the number of minutes (between 0 and 59). For example, if N = 150, then 150 minutes have passed since midnight - i.e. now is 2:30 am. So the program should print 2 30 . In all the problems input the data using input () and print the result using print () . SOLVE PROBLEM "USE HEX CODE TO MIX COLORS" ONLINE Use Hex Code to Mix Colors. To review, hex codes use 6 hexadecimal digits to represent colors, two each for red (R), green (G), and blue (B) components. From these three pure colors (red, green, and blue), we can vary the amounts of each to create over 16 million other colors! For example, orange is pure red, mixed with some green, and noblue.
SOLVE PROBLEM "SIZE YOUR IMAGES" ONLINE Size your Images. CSS has a property called width that controls an element's width. Just like with fonts, we'll use px (pixels) to specify the image's width. For example, if we wanted to create a CSS class called larger-image that gave HTML elements a width of 500 pixels, we'd use: Create a class called smaller-image and use it toresize the
SOLVE PROBLEM "FILL IN THE BLANK WITH PLACEHOLDER TEXT Fill in the Blank with Placeholder Text. Web developers traditionally use lorem ipsum text as placeholder text. The 'lorem ipsum' text is randomly scraped from a famous passage by Cicero of Ancient Rome. Lorem ipsum text has been used as placeholder text by typesetters since the 16th century, and this tradition continues on the web. SOLVE PROBLEM "USE HTML5 TO REQUIRE A FIELD" ONLINE Use HTML5 to Require a Field. You can require specific form fields so that your user will not be able to submit your form until he or she has filled them out. For example, if you wanted to make a text input field required, you can just add the word required within your input Toggle navigation ____
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English español Português Русский 日本語 한국어 français Deutsch polski العربيّة Türkçe * 1. Input, print and numbers * 2. Integer and float numbers * 3. Conditions: if, then, else * 4. For loop with range* 5. Strings
* 6. While loop
* 7. Lists
* 8. Functions and recursion * 9. Two-dimensional lists (arrays)* 10. Sets
* 11. Dictionaries
* 12. JavaScript
* 13. HTML5 and CSS
* 14. Responsive Design with Bootstrap* 15. jQuery
TEACH PYTHON 3 AND WEB DESIGN WITH 200+ EXERCISES 1. ABOUT THIS COURSE Welcome to our interactive manual of Python 3 programming language. This is an introductory course that is way different from the others. What do we have here: * BASIC LESSONS - we start from scratch but go in depth to what you'll really need in production * CHALLENGING PROBLEMS - handful of brain teasers to practice in anylesson
* IN-BROWSER CODE RUNNER - you don't need to setup anything to getstarted
* WEB AND MOBILE SUPPORT - code from any gadget you have * VISUALIZER - a perfect way to debug by step back and forth through program execution to see the variables Searching for a means to teach Python at Key Stage 3, AP Computer Science Principles or CS1? Our course is right for you. We're serious here about the interesting problems you can solve online. Look at these:* ROOK MOVE
- given two chessboard coordinates, tell if a rook can move from one to the other in one move. * LEAST DIVISOR - find the least divisor of the given integer. * NUMBER OF OCCURRENCES - count how many times you've seen each word as you scan the given text.24K
ENROLLED STUDENTS
11
LESSONS
100+
CODING PROBLEMS
NO
REQUIRED TECHNICAL LEVEL 2. SCHOOLS THAT USE US 3. WHAT DO OUR ALUMNI SAY?John Sloan
Dublin, Ireland
“I was a linguist looking to move into computational linguistics but had no background in CS. Snakify took me from absolute beginner to top of the class. I have now designed a website with online English classes and received funding for further research.”Evgeny Serebryakov
Saint-Petersburg, Russia “I was studying molecular biophysics at my university. In spring 2015 I completed this course and then in winter I found a first internship as a Python/Django web developer.” 4. WHY DO I LEARN PROGRAMMING? PROGRAMMING IMPROVES YOUR LIFE. Whatever you do in your life, you can start hacking it right away. * SCIENTISTS collect and process data using programs to do research * ILLUSTRATORS AND MUSICIANS automate daily routines using scripts * STUDENTS can get a very well-paid job in months. Just look at the salaries of Software Engineers at Glassdoor 5. WHY DO I LEARN PYTHON? Python is a great choice whether it's your first or next programminglanguage.
* PYTHON IS VERY EASY AND FLEXIBLE. The programs in Python are tinier than in other languages. * POWERFUL. Due to its huge community Python is very popular as a server-side language. Google (spider, search engine, Google Maps), Netflix and Pinterest use it a lot. Youtube, Quora, Reddit, Dropbox, Yahoo, Battlefield 2, Civilization 4, NASA, AlphaGene — all of them use Python; see the entire list here.
* HIGH DEMAND FOR PROGRAMMERS. See open job positions onStackOverflow
6. WHAT WEBSITES/APPS ARE CODED IN PYTHON? Python is a great choice whether it's your first or next programming language. Here's the list of few projects/organizations that usePython:
* Google, Netflix and Pinterest use it a lot. Youtube, Quora, Reddit, Dropbox, Google Maps. Yahoo, Battlefield 2, Civilization 4, NASA, AlphaGene — all of them use Python; see the entire list here.
7. OKAY, HOW TO LEARN PYTHON? There is a ton of way to do this, really. You can read books, or you can watch Youtube videos. However, YOU BETTER SOLVE CODING PROBLEMS, as you should start thinking like a programmer — and this skill comes with hard work. Ready? Jump to the first lessonDetails
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